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Carding process at the STFI
Carding process at the STFI
Fibre web laid zig zag onto a transport belt (after the cross lapper)
Fibre web laid zig zag onto a transport belt (after the cross lapper)
Needled nonwoven, 200 gsm
Needled nonwoven, 200 gsm
Project News-SusComTrab
01.08.2019

Offcuts as starting material for basalt fibre nonwovens

Within the project,  STFI developed a nonwoven based on basalt fibre offcuts with a mass per unit area of 200 gsm by using the carding process combined with needle-punching.

Basalt fibres obtained from a woven fabric were prepared using a modified cutting and tearing process at STFI.

The basalt woven fabric were cut into squares (90x90mm) and fed to the tearing machine. The obtained recyclates were further processed into a nonwoven by using a dry laid process (carding process and cross lapper) combined with a mechanical bonding method (needle-punching).

As result a nonwoven fabric with an anisotropic structure (cross directed fibre orientation) and a mass per unit area of 200gsm was obtained.

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